Nut-lock.



No. 855.396. I PATENTED MAY 28, 1907. B. J. POREMAN.

, NUT LOOK. ,APPLIOATIOH II LED JAN. 23, 1907.

ZW/MJZJFW [A /51v TOR A TYOR/VEYS I (lol 'f gicmtcern: o'wn'that I,ERNEST JAY FOREMAN,

abitizen"ol tlie llnited States, residing at Trinidad, in thecounty ofLas Animas and brads, have invented a new and 'l lq 'it k Q I hich thefollowing i a spe 'lfi' g al ing lates to nut locks and mil.

more

larlyt'ofmeans for preventing displacement of the nuts emr e inetallicpins of insulatea-refer positionf onjthe cross arm of a teleoifteleplrone or other suitable sup I theiinvention is to provide 'aldcking washerdesigncd to be positioned betwee the nut and cross arm or othersupport'and having in tegral attaching spurs d 'to pier'cdthe cross armwhen the on the threaded pin or bolt.

fi hefobjeet'f isto provide a washer havii' gf oppositel y flfdisposedlocking ears adaptd'f 'to be bentj"'laterally into engagemerit w n theadjacent walls of the nut, said 'g'"provided with terminal depressionconcavitiesfor the reception of a tool thereby toassist' bending saidears in engagement with the nut. y

-' A furt'her object to provide a washer having slits extending inwardlyon each side of the; locking ears whereby said ears may be teatime-engement with nuts of different s'i'ze'andsha es,

A still furt er obj ect of the invention is to 3 5 generallynn rove thisclass of devices so as to increase t ieir utility, durability andefficiency.

Withthese and other ob ects 111 view the invention consists in theconstruction and- 0 novel combinatlon and arrangement of partshereinafter-fully described, and illustrated in the accompanyingdrawings, it being understood that. various changes in form, proportionsand minor details of construction 5 may be resorted to within the scopeof the ap ended claims.

the accompanying drawings forming a part of this specification: Flgure'1 1s a plan view of a washer constructed in accordance so with myinvention showing the washer before the same is bent into shape. Fig. 2is a longitudinal sectional view taken on the line 22 of Fig. 1. Fig. 3is a side elevation showing the washer in position on the atiii-raisinHALFTOSFRED n1 it Specification of Letters Paton Application filedJanuary 23,1907. Serial No. 353,7Q7.'

coir. 0 Ass and h:

, r-anented- May 28', 1-907.-

taching pin of an insulator. Fig. 4 is a erspeetive view of the washerdetached. *ig. 5 is a longitudinal sectional view illust ating amodified form of the invention.

Similar numerals of reference indicate corresponding parts in all of thefigures of the t 1e pin 5, said washer being interposed between thecross arm 6 and nut 9, asbest shown in Fig. 3 of the drawings. The bodyportion 7 is provided with laterally extending attaching spurs 10adapted to be bent at an angle to the adjacent surface of the bodyortion '7 so that when the nut 9 is 'adjuste on the pin the spurs willbe driven into the wood instituting the cross arm 6 and thus lock thewasher in position on said cross arm. Attention is here called to thefact that the piercing points 11 of the spurs 10 are deflect ed inwardlytoward the bolt-receiving opening 8 so that when the spurs are driveninto the support 6 they will firmly grip the fiber of the wood to formin efi'ec-t a locklng key.

Extendingdaterally from opposite sides of the circular body portion 7and referably disposed at right angles to the attacliing spurs 10 arelooking ears 12 adaptedto be bent laterally into engagement withthe sidewalls of the nut 9, the terminals of said ears being provided withdepressions or concavities 13 adapted to receive the point of a suitabletool so that said ears may be conveniently bent laterally intoengagement with the nut. The depressions 13 not only serve to receivethe point of the tool when bending the looking ears to operativeposition but also form spring locking lips 14 which bear against andbite into the side walls of the nut thus serving to prevent accidentalrotation of said nut.

Extending inwardly from the opposite sides of the body portion 7 at theears. 12 are parallel slits 15, the object of which is to permit theears to be bent into en agement with nuts of different sizes and s apes.When the washer isus'ed in connection with a standthen-bent laterallyinto engagement with the sides of the nut by introducing the point of achisel, screw-driver or other tool within the depressions 13 andpressing laterally'onsaid tool thus locking the ears in enga er'nentwith the sides of the nuts and effectua ly preventing accidentalrotation of the latter.

In Fig. 5 of the drawings, there is illustrated a modified form of theinvention in which the attaching spurs .or lugs 18 are preferablystamped or struck upfrom'the body of the washer, *the device,beingotherwise similar 1n construction 'tothe washer'shown in Fig. 1 ofthe drawings If desired, however, the lugs 11 may also be used inconnection with thisform of the device and by way of illustration saidlugs are indicated at. 11.

When the washer is usedin connection-with a metallic surface such as afish' plate, suitable openings or depressions may be formedin the fishplate for the reception of correspondingly shaped depressions formed inthe washer.

While the device is principally designed for use in connection with themetallic pins of insulators, it is obvious that the same may'be usedwith equally good'results on-the clamping nuts of rail joints, bridgejoints or for wagon work,tcar building, or wherever a device of thiskind is found desirable.

Having thus described the invention what is claimed is: i

1. The combination with a support having a bolt extended there-throughand providedwith a clamping nut, of a washer interposed between the nutand support and provided with attaching spurs adapted. to pierce thesupport, oppositely disposed ears formed integral with the washer andprovided with terminal depressions defining" inwardly extending springlocking lips adapted to bear against the sides of the nut, there beingslits formed in the washer oneach side of the lockmg ears 11d connectedby transverse weakening grooves thereby to permit the ears to be bentlaterally into engagement with the nut.

, 2. The combination with a support having a bolt extended there-throughand provided with a clamping nut, of awasher interposed between the nutand support and provided ing said slits at the juncture of the ears withthe washer. I l

3. As" an article of manufacture, a washer formed of a single piece-ofmetal having a bolt-receiving opening formed therein and provided withoppositely disp= sed locking ears the terminals of which are providedwith depressions defining spring locking lips, there being slitsextending'i'nwardly from the peripheral edge of the washer at saidlocking ears, a transverse weakening 'oove connecting said slits at thebase of said ears, and attaching spurs disposed at an angle to one faceof the plate and extending in-a direction opp0site the loekin ears.

In testimony t fat I claim the foregoing as my own, I have heretoaffixed my signature in the presence of two witnesses.

ERNEST JAY FOREMAN:

. Witnesses:

K. HOLLOWAY, E. S. BELL.

